Asteroid 2018 SP2 is a near-Earth object catalogued by NASA under reference ID 3830890. Its estimated diameter is 29–65 m (average 47 m), inferred from brightness rather than measured directly. Its closest catalogued approach to Earth occurs on Sun, Sep 30, 2018, missing by 819,476 km — 2.13 lunar distances. NASA does not classify it as a potentially hazardous asteroid.
This score ranks how notable the asteroid approach is. It is not an impact prediction.
Closest approach
Size and brightness
Related close approaches
| Date | Orbiting | Miss (km) | Miss (LD) | Velocity (km/s) | Index |
|---|---|---|---|---|---|
| 18/08/84Sat, Aug 18, 1984 | Venus | 18,214,761 | 47.36 | 17.1 | 23 |
| 30/09/87Wed, Sep 30, 1987 | Earth | 47,887,264 | 124.52 | 14.2 | 21 |
| 18/09/88Sun, Sep 18, 1988 | Earth | 54,701,193 | 142.24 | 21.3 | 25 |
| 16/10/90Tue, Oct 16, 1990 | Venus | 20,829,274 | 54.16 | 20.1 | 24 |
| 18/03/95Sat, Mar 18, 1995 | Earth | 37,166,480 | 96.64 | 16.2 | 22 |
| 01/10/95Sun, Oct 1, 1995 | Earth | 3,119,928 | 8.11 | 14.2 | 45 |
| 29/04/02Mon, Apr 29, 2002 | Earth | 47,027,917 | 122.29 | 18.7 | 23 |
| 23/09/02Mon, Sep 23, 2002 | Earth | 67,395,382 | 175.25 | 15.5 | 22 |
| 16/02/03Sun, Feb 16, 2003 | Earth | 57,596,090 | 149.77 | 15.8 | 22 |
| 24/09/03Wed, Sep 24, 2003 | Earth | 32,222,839 | 83.79 | 17.9 | 23 |
| 08/12/04Wed, Dec 8, 2004 | Venus | 16,716,545 | 43.47 | 19.3 | 24 |
| 08/04/10Thu, Apr 8, 2010 | Earth | 30,498,704 | 79.31 | 16.6 | 22 |
| 02/10/10Sat, Oct 2, 2010 | Earth | 34,815,590 | 90.53 | 13.6 | 21 |
| 16/09/11Fri, Sep 16, 2011 | Earth | 66,775,358 | 173.64 | 23.3 | 26 |
| 18/05/17Thu, May 18, 2017 | Earth | 72,036,806 | 187.32 | 22.0 | 25 |
| 15/03/18Thu, Mar 15, 2018 | Earth | 38,516,120 | 100.15 | 16.1 | 22 |
| 30/09/18Sun, Sep 30, 2018 | Moon | 1,167,601 | 3.04 | 14.3 | 55 |
| 30/09/18Sun, Sep 30, 2018 | Earth | 819,476 | 2.13 | 14.4 | 57 |
| 01/02/19Fri, Feb 1, 2019 | Venus | 21,642,724 | 56.28 | 20.0 | 24 |
| 14/05/25Wed, May 14, 2025 | Earth | 68,410,900 | 177.89 | 21.6 | 25 |
| 15/03/26Sun, Mar 15, 2026 | Earth | 38,375,088 | 99.79 | 16.0 | 22 |
| 30/09/26Wed, Sep 30, 2026 | Earth | 1,927,097 | 5.01 | 14.3 | 51 |
Data source
All figures on this page come from NASA's Near Earth Object Web Service, maintained by the Center for Near-Earth Object Studies at JPL. The Orbitfall Index is calculated by Orbitfall from those values — see the methodology and the NASA asteroid tracker overview. For current passes, see asteroids passing Earth today.
Learn about close approaches
Today's catalogued close approaches, ranked.
What counts as a near-Earth object, and today's list.
What a close approach is and how it's measured.
Where the data comes from and how often it updates.
What NASA's PHA label does and doesn't mean.
1 LD = 384,400 km — the yardstick for flybys.
Why a close approach is a schedule, not a warning.
From first detection to orbit refinement.